Android Open Source - dice-probabilities Special Spinner

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License

The source code is released under:

MIT License

Java Source Code

package org.kleemann.diceprobabilities.special;
/*from  w w  w.  j  a  v  a2 s  .  c o  m*/
import java.util.ArrayList;

import org.apache.commons.math3.fraction.BigFraction;
import org.kleemann.diceprobabilities.R;

import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;

/**
 * <p>
 * Handles all aspects of the spinner object "special". Dice set should query
 * this to determine the currently selected state.
 * 
 * <p>
 * Basic idea of a complex spinner control taken from here:
 * http://adanware.blogspot.in/2012/03/android-custom-spinner-with-custom.html
 */
public class SpecialSpinner {

  private final Spinner spinner;
  private final ArrayList<Special> special;
  private final LayoutInflater layoutInflater;
  private Special selected = null;
  private final Special def;
  private View.OnClickListener changed = null;

  public SpecialSpinner(Activity activity, Spinner spinner) {
    this.spinner = spinner;

    final Resources r = spinner.getResources();
    def = new NormalSpecial(r);
    special = new ArrayList<Special>();
    special.add(def);
    special.add(new SecondChanceSpecial(r));
    special.add(new ForcedRerollSpecial(r));
    special.add(new CritSpecial(r, 6, 1, "Heavy Pick"));
    special.add(new CritSpecial(r, 4, 1, "Scyth"));
    special.add(new CritSpecial(r, 4, 2, "Fanged Falchion"));
    special.add(new ModifyEachDieSpecial(r, -1));
    special.add(new DogslicerSpecial(r));
    special.add(new FailureSpecial(r
        .getString(R.string.special_one_sixth_failure_title), r
        .getString(R.string.special_one_sixth_failure_description),
        new BigFraction(1, 6)));
    special.add(new FailureSpecial(r
        .getString(R.string.special_two_sixth_failure_title), r
        .getString(R.string.special_two_sixth_failure_description),
        new BigFraction(2, 6)));
    special.add(new DeathZoneSpecial(r));

    this.layoutInflater = activity.getLayoutInflater();
    SpecialAdapter adapter = new SpecialAdapter(spinner.getContext(),
        R.layout.spinner_item);
    spinner.setAdapter(adapter);

    spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
      @Override
      public void onItemSelected(AdapterView<?> parent, View view,
          int pos, long id) {
        selected = special.get(pos);
        if (changed != null) {
          changed.onClick(null);
        }
      }

      @Override
      public void onNothingSelected(AdapterView<?> arg0) {
        selected = null;
        if (changed != null) {
          changed.onClick(null);
        }
      }
    });
  }

  public Special getSelected() {
    return selected == null ? def : selected;
  }

  public int getSelectedItemPosition() {
    return spinner.getSelectedItemPosition();
  }

  public void setSelectedItemPosition(int pos) {
    spinner.setSelection(pos);
  }

  public void setChangeListener(View.OnClickListener changed) {
    this.changed = changed;
  }

  private class SpecialAdapter extends ArrayAdapter<Special> {

    public SpecialAdapter(Context context, int resource) {
      super(context, resource, special);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
      // Ordinary view in Spinner, we use
      // android.R.layout.simple_spinner_item
      return super.getView(position, convertView, parent);
    }

    @Override
    public View getDropDownView(int position, View row, ViewGroup parent) {
      // This view starts when we click the spinner.
      if (row == null) {
        row = layoutInflater.inflate(R.layout.special, parent, false);
      }

      Special item = special.get(position);

      if (item != null) { // Parse the data from each object and set it.
        TextView tvTitle = (TextView) row.findViewById(R.id.title);
        if (tvTitle != null) {
          tvTitle.setText(item.getTitle());
        }
        TextView tvDescription = (TextView) row
            .findViewById(R.id.description);
        if (tvDescription != null) {
          tvDescription.setText(item.getDescription());
        }
      }

      return row;
    }
  }
}

Java Source Code List

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